#include<bits/stdc++.h>
#define ll long long
#define ull unsigned long long
using namespace std;

const int N = 1e6 + 10, INF = 0x3f3f3f3f;

int n, ans;
int a[N];
set<int> s, tmp;

void solve()
{
    s.clear();tmp.clear();ans = 0;
    cin >> n;
    for (int i = 1;i <= n;i++) cin >> a[i];
    for (int i = 1;i <= n;i++) {
        s.erase(a[i]);
        tmp.insert(a[i]);
        if (s.size() == 0) {
            s = tmp;
            tmp.clear();
            ans++;
        }
    }
    cout << ans << '\n';
}

signed main()
{
    // ios::sync_with_stdio(0);
    // cin.tie(0);cout.tie(0);
#define ONLINE_JUDGE
#ifndef ONLINE_JUDGE
    std::istringstream in(R"()");
    std::cin.rdbuf(in.rdbuf());
#endif
    int T = 1;
    cin>>T;
    for (int i = 1;i <= T;i++) {
        solve();
    }
}